# Synonyms Quiz vs One Brain

The clearest difference is in-app purchases: Synonyms Quiz at none against One Brain's 1. Synonyms Quiz also leads on review sentiment (89% vs 59%) and rating (4.7 vs 4.4). One Brain's advantage is update cadence (weekly vs every 11 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. One Brain sells 1 one-off in-app purchase. Synonyms Quiz asks for nothing beyond the download.

Synonyms Quiz holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 680 and 297 respectively. Written reviews point the same way: 89% of Synonyms Quiz's written reviews are positive against 59% of One Brain's.

Synonyms Quiz ships an update every 11 months, One Brain weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Synonyms Quiz | One Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (680 ratings)](https://appshunter.io/ios/app/synonyms-quiz/id561027523/reviews)** | [4.4 (297 ratings)](https://appshunter.io/ios/app/one-brain/id1229367064/reviews) |
| Number of ratings | **680** | 297 |
| Positive reviews | **89.0% of reviews** | 58.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 47 MB | 10 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | +4 |
| Developer | [Fresh Logo SRL](https://appshunter.io/developer/399592524) | [Erik Wegener](https://appshunter.io/developer/424482392) |

## What reviewers say

### Synonyms Quiz

[App page](https://appshunter.io/ios/app/synonyms-quiz/id561027523)

Challenge your vocabulary with a fun synonym game. Select the correct synonym from multiple choices and learn definitions for over 3800 words. Compete with others and track your progress.

**Highlights:** Synonym matching game, Over 3800 words, Word definitions, Leaderboard competition, Achievements, iCloud sync

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and engaging vocabulary game
- 🧠 Helps improve and expand vocabulary
- 💡 Useful for language learners and students
- 🧠 Keeps the brain active and challenged
- 🧠 Great for lifelong learning

**What reviewers complain about**

- 🐛 Some words have spelling mistakes
- 💡 Lack of difficulty levels or progression
- 💡 No option to see word definitions
- 💡 No way to review or repeat missed words
- 🐛 Occasional performance issues or crashes

**Reported bugs**

- Spelling errors in some words
- Occasional crashes or performance issues
- Compatibility problems with newer iOS versions

**Requested features**

- Add difficulty levels or progression
- Include word definitions and pronunciations
- Ability to review or repeat missed words
- Option to save favorite words or create custom lists
- Improved performance and compatibility with newer OS versions


### One Brain

[App page](https://appshunter.io/ios/app/one-brain/id1229367064)

Test your cognitive abilities with a game inspired by the Stroop effect. Quickly identify matching colors, arrow directions, or true/false math equations under time pressure. Challenge your brain to process conflicting information and achieve high scores.

**Highlights:** Stroop effect inspired gameplay, Color matching challenges, Arrow direction tests, Math equation verification, Timed gameplay, Score tracking

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and effective brain training
- 🧠 Helps improve focus and concentration
- 🤯 Challenging and addictive gameplay

**What reviewers complain about**

- ⏱️ Timer is too short, needs more time
- 🙄 Excessive ads and interruptions
- 🤖 Inconsistent scoring and feedback

**Reported bugs**

- Incorrect registering of correct answers
- Crashes and freezes on certain devices
- Keyboard controls not working as expected

**Requested features**

- Adjustable difficulty levels
- More game modes and variations
- Option to disable ads or pay for ad-free version


## Frequently asked questions

### Is Synonyms Quiz free?

Synonyms Quiz is free to download, with no in-app purchases.

### Is One Brain free?

One Brain is free to download, with in-app purchases available.

### Which has better reviews, Synonyms Quiz or One Brain?

Synonyms Quiz is rated higher. Synonyms Quiz averages 4.7 out of 5 from 680 ratings, while One Brain averages 4.4 from 297 ratings.

### Do Synonyms Quiz or One Brain have ads?

Both Synonyms Quiz and One Brain show ads.

### Which is updated more often, Synonyms Quiz or One Brain?

Synonyms Quiz ships an update every 11 months, and One Brain weekly. Most recently, Synonyms Quiz was updated on October 29, 2026 and One Brain on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*